EP 0153659 A2 19850904 - Process for preparing microcrystalline triacetyl cellulose.
Title (en)
Process for preparing microcrystalline triacetyl cellulose.
Title (de)
Verfahren zur Herstellung von mikrokristalliner Triacetylcellulose.
Title (fr)
Procédé de préparation de triacétate microcristallin de cellulose.
Publication
Application
Priority
DE 3407596 A 19840301
Abstract (en)
[origin: US4697007A] The preparation of microcrystalline triacetylcellulose by acid-catalyzed acetylation of microcrystalline cellulose, perfluoroalkanesulfonic acids with 1 to 8 carbon atoms are used as the catalyst, resulting in a non-hazardous process and high yields of exceptionally high purity product, the latter being particularly suitable for chromatographic purposes, in particular for the chromatographic resolution of racemates.
Abstract (de)
In einem Verfahren zur Herstellung von mikrokristalliner Triacetylcellulose durch sauerkatalysierte Acetylierung von mikrokristalliner Cellulose können Perfluoralkansulfonsäuren mit 1 bis 8 C-Atomen anstatt der bislang verwendeten Perchlorsäure als Katalysator eingesetrt werden. Die in hoher Ausbeute und hervorragender Qualität erhaltene mikrokristalline Triacetylcellulose eignet sich besonders für chromatographische Zwecke, insbesondere für chromatographische Racematspaltungen.
IPC 1-7
IPC 8 full level
B01J 20/281 (2006.01); B01D 15/08 (2006.01); B01J 20/22 (2006.01); B01J 20/291 (2006.01); B01J 31/02 (2006.01); C07B 61/00 (2006.01); C08B 3/02 (2006.01); C08B 3/06 (2006.01); G01N 30/88 (2006.01)
CPC (source: EP US)
B01J 20/22 (2013.01 - US); B01J 20/262 (2013.01 - EP); B01J 20/285 (2013.01 - EP US); C08B 3/02 (2013.01 - EP US); B01J 2220/54 (2013.01 - US)
Designated contracting state (EPC)
BE CH DE FR GB LI NL SE
DOCDB simple family (publication)
EP 0153659 A2 19850904; EP 0153659 A3 19861105; EP 0153659 B1 19911113; DE 3407596 A1 19850905; DE 3584638 D1 19911219; JP H0662681 B2 19940817; JP S60215001 A 19851028; US 4697007 A 19870929
DOCDB simple family (application)
EP 85101549 A 19850213; DE 3407596 A 19840301; DE 3584638 T 19850213; JP 3899285 A 19850301; US 70713085 A 19850301